Function runUpdate

cli/command/service/update.go:155–258

nolint:gocyclo

(ctx context.Context, dockerCLI command.Cli, flags *pflag.FlagSet, options *serviceOptions, serviceID string)

//nolint:gocyclo
func runUpdate(ctx context.Context, dockerCLI command.Cli, flags *pflag.FlagSet, options *serviceOptions, serviceID string) error {
	apiClient := dockerCLI.Client()

	res, err := apiClient.ServiceInspect(ctx, serviceID, client.ServiceInspectOptions{})
	if err != nil {
		return err
	}

	rollback, err := flags.GetBool(flagRollback)
	if err != nil {
		return err
	}

	if rollback {
		// Rollback can't be combined with other flags.
		otherFlagsPassed := false
		flags.VisitAll(func(f *pflag.Flag) {
			if f.Name == flagRollback || f.Name == flagDetach || f.Name == flagQuiet {
				return
			}
			if flags.Changed(f.Name) {
				otherFlagsPassed = true
			}
		})
		if otherFlagsPassed {
			return errors.New("other flags may not be combined with --rollback")
		}
	}

	updateOpts := client.ServiceUpdateOptions{}
	rollbackAction := "none"
	if rollback {
		rollbackAction = "previous"
	}

	spec := &res.Service.Spec
	err = updateService(ctx, apiClient, flags, spec)
	if err != nil {
		return err
	}

	if flags.Changed("image") {
		updateOpts.QueryRegistry = !options.noResolveImage
	}

	updatedSecrets, err := getUpdatedSecrets(ctx, apiClient, flags, spec.TaskTemplate.ContainerSpec.Secrets)
	if err != nil {
		return err
	}
	spec.TaskTemplate.ContainerSpec.Secrets = updatedSecrets

	updatedConfigs, err := getUpdatedConfigs(ctx, apiClient, flags, spec.TaskTemplate.ContainerSpec)
	if err != nil {
		return err
	}
	spec.TaskTemplate.ContainerSpec.Configs = updatedConfigs

	// set the credential spec value after get the updated configs, because we